生活污水處理工程

生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水(shui)是居民日常生(sheng)(sheng)(sheng)活(huo)(huo)中(zhong)排出的廢水(shui)，主要來源于居住(zhu)建(jian)筑(zhu)(zhu)和公(gong)共(gong)建(jian)筑(zhu)(zhu)，如住(zhu)宅、機(ji)關、學(xue)校、醫(yi)院(yuan)、商(shang)店、公(gong)共(gong)場所及工業企業衛生(sheng)(sheng)(sheng)間等(deng)(deng)。生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水(shui)所含(han)的污(wu)(wu)染物(wu)(wu)主要是有機(ji)物(wu)(wu)(如蛋白質、碳水(shui)化(hua)合物(wu)(wu)、脂肪(fang)、尿素、氨氮等(deng)(deng)) 和大量病(bing)原(yuan)微生(sheng)(sheng)(sheng)物(wu)(wu)(如寄生(sheng)(sheng)(sheng)蟲卵(luan)和腸道傳(chuan)染病(bing)毒等(deng)(deng))。存在于生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水(shui)中(zhong)的有機(ji)物(wu)(wu)極不穩定，容易腐化(hua)而產(chan)生(sheng)(sheng)(sheng)惡臭(chou)。細菌(jun)和病(bing)原(yuan)體以生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水(shui)中(zhong)有機(ji)物(wu)(wu)為營養而大量繁(fan)殖，可導致(zhi)傳(chuan)染病(bing)蔓(man)延流行(xing)。因此，生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水(shui)排放前必(bi)須(xu)進(jin)行(xing)處理。

常見生活污水處理流程如下：